Friedrich Leisch
University of Natural Resources and Life Sciences, Vienna
230 Papers
917 Citations
Friedrich Leisch is an academic researcher from University of Natural Resources and Life Sciences, Vienna. The author has contributed to research in topics: Market segmentation & Computer science. The author has an hindex of 49, co-authored 219 publications. Previous affiliations of Friedrich Leisch include Vienna University of Technology & University of Erlangen-Nuremberg.
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Papers
Visiting friends or relatives
TL;DR: For instance, this article found that the profile of people visiting friends and relatives differs significantly from that of visiting relatives (VRs), and that this finding has major implications for tourism marketing which need to target VFs or VRs in distinctly different ways, rather than generically marketing to VFR travellers.
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Three good reasons NOT to use five and seven point Likert items
Sara Dolnicar,Bettina Grün,Friedrich Leisch,John R. Rossiter +3 more
- 01 Jan 2011
TL;DR: The most popular answer formats in tourism are the seven and the five point answer formats (based on a review of JTR publications over the past 5 years) as discussed by the authors, which are the default choice for survey researchers, however, five and seven point Likert items suffer from response style bias.
Automatic Mapping of Forest Stands Based on Three-Dimensional Point Clouds Derived from Terrestrial Laser-Scanning
TL;DR: In this paper, a two-stage density clustering approach was proposed for the automatic mapping of tree positions, and an algorithm for automatic tree diameter estimates based on terrestrial laser-scanning (TLS) point cloud data sampled under limited sighting conditions.
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Simple K-Medoids Partitioning Algorithm for Mixed Variable Data
Weksi Budiaji,Friedrich Leisch +1 more
TL;DR: A simple and fast k-medoids algorithm that updates medoids by minimizing the total distance within clusters has been developed, but it nonetheless has neglected local optima and empty clusters that may arise.
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Changes in Chromosome Counts and Patterns in CHO Cell Lines upon Generation of Recombinant Cell Lines and Subcloning
Sabine Vcelar,Michael Melcher,Norbert Auer,Astrid Hrdina,Anja Puklowski,Friedrich Leisch,Vaibhav Jadhav,Till Wenger,Martina Baumann,Nicole Borth +9 more
TL;DR: It is concluded that the process of subcloning itself does not contribute to an improved karyotypic homogeneity of a population, while the selection for a specific cell property inherently can provide evolutionary pressure that may lead to improved chromosomal stability as well as to a more homogenous population.
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